Lamp-burner.



G. G. BRIAND. LAMP BURNER. uruonmn FILED MAY 14, 1913.

1,107,21 1. Patented Aug. 11, 1914.

VV/TNESSES 1%. far 6 y 687 g TM- NORRIS PETERS W. PHOTD-LITHO.,WIININOTDN, D- G UNITED STATES PATENT OFFICE.

CHARLES BRIAND, 0F REVERE, MASSACHUSETTS, ASSIGNOR TO PETER GRAY & SONS,INC., A CORPORATION OF MASSACHUSETTS.

LAMP-BURNER.

Specification of Letters Patent.

Patented Aug. 11, 1914.

Application filed May 14, 1913. Serial No. 767,588.

To all whom it may. concern Be it known that 1, CHARLES C. BRIAND, acitizen of the United States, residing in Revere, county of Suffolk,Commonwealth of Massachusetts, have invented certain new and usefulImprovements in Lamp-Burners, of which the following is a specification,reference being had to the drawings accompanying the same and forming apart thereof.

My invention relates to what is known as long-time chimney burners,wherein a round wick is used, and wherein means are used to cause theflame thereof to burn in the shape of a flat flame.

The objects of my invention are as follows :To produce a lamp burnerthat will give a clear white flame burning constantly for several dayswith the smallest possible variation of candle power; that will developthe least amount of heat at the end of the wick without smoking; andthat will reduce the amount of incrustation on the end of the wick.

Another object is to produce a steady flat flame of maximum candle powerfrom a round Wick.

In the drawings accompanying this specification and forming a partthereof-Figure 1 is an elevation of the burner with the chimneyattached; Fig. 2 is a vertical sectional elevation of the burner andchimney taken through the center thereof; and Fig. 3 is a sectional planof the burner and chimney taken through line 33, Fig. 2.

In the drawings, 1 represents the body of the burner, which is providedwith a threaded portion 2 for attaching it to the font of the lamp, andthe upwardly extending portion 3 surmounted at the top by the gallery 4.The space in the body of the burner is closed by the diaphragm 5. Fourspring clips 6, 6, 6, 6, are attached to the downwardly extendingportion of the gallery a by rivets 7, 7, etc., at the flaring portion oftheir outer ends. The free portion of the clips extend downwardly, forma loop near the mid-portion, and then extend upwardly through the slots8, 8, etc., formed in the horizontal portion of the gallery 4. Theseslots serve to keep the free end of the clips 6, 6 etc., in position,limit the inward and outward movement thereof, as well as their sidemovement. The purpose of this construction is to avoid having anyoutwardly extending rough portions outside the gallery of the burner.

A wick tube 9 is secured in the bottom of the body 1 and extendsupwardly through the diaphragm 5 and has secured to its upper free endthe cone portion 10 in such manner as to form a slightly cupping recess11 around the top of the wick tube. This cupping portion is better shownin Fig. 3. The cone 10 has oppositely disposed holes, or air ports 12,punched out of it, the punch cutting three sides of the hole so that theportion cut out can be bent up as shown at 13, 13, forming flamespreaders oppositely located with reference to the upper end of the wicktube, as is better shown in Figs. 1 and 3. It will be noted that thespace between vertical lines drawn from the lower edge of the cone 10and the inner edge 14 of the gallery at is very slight. The purpose ofthis is to deflect the currents of air coming in through the four spaces15, 15, etc., away from the burner so that the stronger portion of theair current will be deflected outwardly to the inner walls of thechimney.

The purpose of the cone 10, as before stated, i to prevent strongcurrents of air from getting at the upper end of the wick, the operationof the burner being as follows, (assuming the flame of the burner to belighted) :Air currents flowing through the openings 15 into the body ofthe burner are prevented from flowing directly upwardly around the endof the wick by the cone l0, and the main current is deflected outwardlyalong the inner wall of the chimney and through the oppositely disposedports 12 of the cone 10. The current passing upwardly through the ports12 passes outside the flaring flame spreaders 13, thereby drawing theflame outwardly in opposite directions from the wick to spread it untilit touches the flame spreaders 13, 13, thus producing a fiat flame froma round wick.

To support combustion below the top edges of the flame Spreaders 13, 13,suflicient air is drawn in to the flame from the currents passing uparound the outer edges of the cone 10 to feed the flame and produce aclear, white flame, the cup portion 11 preventing the air currents fromflowing directly to the portion of the wick immediately above the end ofthe wick tube, thus preventin combustion close down to the wick tube, tereby leaving an unburned or uncrusted' portion of the wick throughwhich the gas from the oil can escape to supply the flame after the topof the wick has become somewhat incrusted.

By cutting down the air supply to the wick at the point of combustion,less heat is generated than if the air was allowed to come easily incontact with the combustion end of the wick. The result of thislessoning of heat is a lessening of incrustation at the combustion endof the wick, resulting in a greater gas supply, and a more even candlepower throughout the time the flame is burning than would be the casewere strong and plentiful currents of air allowed to come in directcontact with the combustion end of the wick. This, applicant hasdemonstrated by exhaustive tests. By this construction I am enabled toproduce and maintain a flame of medium candle power over a space ofseveral days, without a very material decrease in the candle power ofthe flame.

I do not wish to confine myself to a shield 10 made exactly cone-shapedas illustrated, or to having a complete cone, for circular shields maybe attached to the top of the wick tube extending between the flamespreaders 13, 13, on opposite sides of the wick tube without materiallyaltering the results, and without departing from the spirit of myinvention.

hat I claim is- 1. In a lamp burner, a body part; means for securing achimney thereto; a wick tube secured in the body part; a truncated conesecured to the upper end of the wick tube in manner to form a cup-shapeddepression surrounding the end of the wick tube; oppositely disposedflame spreaders secured to the upper edges of the truncated cone, saidcone having two oppositely disposed air holes formed in it below andoutside the flame spreaders so as to create a suction of air outside theflame-spreaders.

2. In a lamp burner, a body part formed to have a chimney secured to it;a ring secured to the top of the body part having a plurality of guidingholes formed in it; a plurality of flat chimney retaining springssecured to the said ring, said springs being bent in the form of a loopto extend downwardly, inwardly and then upwardly so as to extend throughand be guided by the holes in said ring as specified.

In testimony whereof, I have hereunto set my hand, in the presence oftwo subscribing witnesses, th1s the 28th day of April, 1913.

CHARLES C. BRIAN D.

IVitnesses E. Y. Rooms, H. M. KnLso.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents. Washington, D. G.

